Answer: Mall intercept
Step-by-step explanation:
From the question, we are informed that Barry was sitting on a bench near the center of the shopping mall waiting for his wife to finish her shopping when he was approached by a woman holding a clipboard with a dress shirt laid over her arm and asking him question related to the shirt.
Based on the above scenario, Barry participated in a mall intercept. Mall intercept simply refers to a situation whereby people are approached at shopping malls and asked questions in form of surveys which are done by researchers in order to gather information regarding a particular subject area.